Our mall has 4 busses an hour and it is becoming a non-profit center as stores fade away, the Hospital moved in COVID testing and vaccination and will be moving in more medical officers, other kinds of NGOs such as toy banks are moving in. (E.g. there is no ‘toy store’ to compete with it, no ‘pet shop’ to compete with the SPCA, etc.
From what I've seen malls are consolidating. The good ones continue to do well and get even nicer, while all the others slowly die as people make the trek to the good mall. There is no room in the market for average. It will be interesting to see what happens to them as they die, as they are quite unique pieces of real estate.
At the same time , as you say, there are vibrant shopping malls within 30-45 minutes.